122232111540 has 288 divisors, whose sum is σ = 443808325632. Its totient is φ = 24579244800.

The previous prime is 122232111539. The next prime is 122232111593. The reversal of 122232111540 is 45111232221.

It is a happy number.

122232111540 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 122232111540.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1536627 + ... + 1614213.

Almost surely, 2^122232111540 is an apocalyptic number.

122232111540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122232111540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221904162816).

122232111540 is an abundant number, since it is smaller than the sum of its proper divisors (321576214092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122232111540 is a wasteful number, since it uses less digits than its factorization.

122232111540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77659 (or 77646 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 122232111540 its reverse (45111232221), we get a palindrome (167343343761).

The spelling of 122232111540 in words is "one hundred twenty-two billion, two hundred thirty-two million, one hundred eleven thousand, five hundred forty".